1998409780 is an even 10-digits composite number following 1998409779
and preceding 1998409781 . In scientific notation, it is written as 1.998409780 × 10^9.
The sum of its digits is 55. It has a total of 4 prime factors and 12 positive divisors.
There are 799363904 positive integers (up to 1998409780) that are relatively prime to 1998409780.
1998409780 has 12 divisors, whose sum is 4196660580
The reverse of 1998409780 is 0879048991
Previous prime number is 5
Is Prime? no Number parity even Number length 10 Sum of Digits 55 Digital Root 1
Name
one billion nine hundred ninety-eight million four hundred nine thousand seven hundred eighty
Scientific notation
1.998409780 × 10^9
Engineering notation
1.998409780 × 10^9
Prime Factorization
2 × 2 × 5 × 99920489
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
999204890 Product of the distinct prime numbers
The prime factorization of 1998409780 is 2 × 2 × 5 × 99920489.
Since it has a total of 4 prime factors.
6 , 6 , 11 , 19 , 224 , 872 , 195 , 6119 , 54113 , 30430 , 860341 , 451072 , 7145664 , 5136712 , 84504513 , 71080967 , 667935557 , 940830753 , 3864215781 , 1205660373
n×2
3996819560
n×3
5995229340
n×4
7993639120
n×5
9992048900
n÷2
999204890
n÷3
666136593.33333
n÷3
499602445
n÷5
399681956
n2
3993641648799648400
n3
7.9809325287765E+27
n4
1.5949173619027E+37
n5
3.1872984543182E+46
2 √n44703.576814389
3 √n1259.587036078
4 √n211.43220382522
5 √n72.466437109207
1 , 2 , 4 , 5 , 10 , 20 , 99920489 , 199840978 , 399681956 , 499602445 , 999204890 , 1998409780
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1998409779 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
1 Returns the nth root of the product of n divisors
H Harmonic Mean
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998409780 can be divided by 12 positive divisors.
The sum of these divisors (counting 1998409780) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110111000111010101000000110100
3
Ternary
12011021100201212001
4
Quaternary
1313013111000310
5
Quinary
13043043103110
6
Senary
530144505044
8
Octal
16707250064
10
Decimal
1998409780
12
Duodecimal
47931b184
16
Hexadecimal
771d5034
20
Vigesimal
1b4a1490
36
Base36
x1suus
md5
35df2b62bf3f96e549b7e25cf2de5cf5
sha1
d2f2a3b8dc4ceffe8ab917f93237ea681c0b084d
sha256
b269f35c07693bf86c1768837587701dafbe3d08500220ab2a645ecf79e5f766
sha512
4b3319282fb5afc3b5673365803c935568d667ff0ce0fa1999399a10dfc8a9457725d5f483c56056506d115293f6575533a1f947a23f468aa4e97b968e20f32f
ripemd-160
a91a3d793a23b3d61ba881d918ca1216036832bf
Diameter
3996819560
Circumference
12556378967.42
Area
1.2546395264939E+19
Volume
3.34304520016E+28
Surface area
5.0185581059757E+19
Circumference
12556378967.42
Perimeter
7993639120
Area
3993641648799648400
Diagonal
2826178214.055
Surface area
2.3961849892798E+19
Volume
7.9809325287765E+27
Space diagonal
3461347273.3025
Perimeter
5995229340
Area
1.729297560736E+18
Altitude
1730673636.6513
Surface area
1.729297560736E+18
Volume
9.4056191854837E+26
Height
942059404.68501